Breath
what muscle lifts the carbon dioxide
What is the diaphragm
what does the rib cage protect
the heart
is breathing voluntary or involuntary
they are voluntary and involuntary
what happens when you smoke
your lungs turn black
what happens to the cilia when you smoke
it gets damaged
when you exhale this comes out
carbon dioxide
this is the wind pipe
trachea
why is your lungs and the heart so close
They have to work together
What are the tiny air sacs in the lungs called
what is bronchioles
what happens when you inhale
carbon dioxide comes in
how much lungs do we have
2
what does the respiratory system do all together
help you survive
what happens when you talk
What is vibration
what two areas can you breath in and out of
nose and mouth
this has 12 bones and to protect the heart
rib cage